Quote Originally Posted by Eldan View Post
I forgot with Aperature, but per the ending of Portal 2: interplanetary teleportation. Without even light speed delay, it seems. Would need some setup to get it to, say, Mars (aiming would be a pain), but I can just imagine tying a piece of moon rock with a portal already on it to the next rover.
Not entirely without light speed delay. Time the portal opening from you pulling the trigger for the moonshot. 6 seconds. The moon is roughly 3 light seconds away.

Yes, when the portal is open, it's instant, but creating it is not.